前ぜん置ち胎たい盤ばんぜんちたいばんMeanings1nounplacenta previaMedical term for a condition where the placenta covers the cervix, potentially causing complications during pregnancy and delivery.前ぜん置ち胎たい盤ばんと診しん断だんされた場ば合あい、帝てい王おう切せっ開かいが必